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The paper presents a study about the maximum power actually used by residential customers in Italy, in order to permit the evaluation of different levels of contractual power. The study takes into account different power thresholds and the impact on their number and duration of a photovoltaic power plant and an electric storage system. A description of the control algorithms developed by RSE for the...
On October 23rd, 2014 the European Council confirmed the targets for the new 2030 climate and energy policy. In this paper we present a methodology to assess the impact of the achievement of such targets on the development and on the operation of the power system, to determine the necessary investments on infrastructures by means of a cost-benefit analysis based on simulations and to estimate the...
Nowadays in many countries, the increasing influence of diffuse generation (DG) in distribution networks, in particular from not-programmable Renewable Energy Resources (RES), is showing criticalities especially where the network reinforcement is very difficult because of economic or environmental factors. In addition to RES, Electric Vehicles and storage technologies are increasing both the criticalities...
Flat tariff has always been the default condition for residential customers in Italy and only starting from July, 1st 2010, the Italian Authority for Electricity and Gas (AEEG) approved the entry into force of a mandatory time-of-use (ToU) tariff at two-part rate periods. In order to assess the impact of the tariff in the short and medium term among Italian customers, R.S.E. has started a research...
Nowadays, and in the next future, the increase of the Dispersed Generation (DG) will alter significantly the operation of distribution networks. The attention is focused here on the HV/MV interface, where an inversion of power flow on the HV/MV transformer feeding the MV network, can take place as a consequence of the DG increase.
This paper describes a procedure developed by the authors with the aim to evaluate the capability of Medium Voltage (MV) busses to accept power injection from dispersed generators and to support the distribution system operators in facing the growing penetration of dispersed generation, especially due to Renewable Energy Sources (RES).
The procedure developed by the authors simulates an increasing power injection at every bus of the considered sample and checks the violation of operating limits (current, SVV, RVC) in order to determine the maximum admissible nodal injection. The procedure is applied to a huge network data set, corresponding to real Italian MV grids and representing a significant subset (7%) of the system.
In the last years, electricity markets were created all over the world following different basis concepts. Market structure, market rules, demand levels, market concentration and energy sources to produce electricity have a strong influence on market performances. Modifications on these aspects may significantly affect market outcomes. Sensitivity analyses need proper simulation tools. In this paper...
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